有効 ゆうこうPP ぴいぴいDU でぃうゆうじゃないです
yūkō piipii diuyūjanaidesu

Noun
Desu Copula
Negation Auxiliary

The polite negative form of 有効PPDU

1. Not valid PPDU.; It's not a valid PPDU.

Negative
Polite
Casual Register
Computing